Alabaster and Bytownite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.30
2.72-2.75
Fracture
Not Available
Uneven, Uneven, Gems, Sixth Edition (2006)
Cleavage
Not Available
Perfect on [001], good on [010], imperfect on [110]
Chemical Composition
CaSO 4 · 2H 2OWalter Schumann , Gemstones of the world (2001)
Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Alabaster and Bytownite Chemical Formula
While comparing Alabaster and Bytownite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Alabaster and Bytownite chemical formula.
- Chemical formula of Alabaster- CaSO 4 · 2H 2OWalter Schumann , Gemstones of the world (2001)
- Chemical formula of Bytownite- Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Alabaster and Bytownite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Alabaster and Bytownite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alabaster and Bytownite Optical Properties during the identification of gemstone. Specific gravity of Alabaster is 2.72-2.75 whereas that of Bytownite is 2.72-2.75.